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Filterbuy 20x21x5 MERV 11 Pleated HVAC Filter (2-Pack)

Filterbuy ★ 3.9/5 · ItemOracle Score Mid-Range

$100 USD
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Filterbuy 20x21x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38)

Electrostatic pleated furnace filters with MERV 11 for allergens and pets. Improves HVAC efficiency. Customers note easy installation and good filtration, though some report size fit issues

Highlights

  • MERV 11 synthetic media for dust capture
  • Actual size close to 20x21x5
  • Whole house replacement compatibility

Pros

  • MERV 11 filtration
  • Electrostatic pleated design
  • Includes 2-pack
  • Supports easy installation
  • Pet and allergy defense

Cons

  • Mixed fit sizing feedback
  • Some consider size too large for certain units
  • Sturdiness feedback varies

Best For

  • furnace filter replacement
  • air conditioner filter replacement
  • hvac system maintenance
  • pet owners with allergies
  • dust reduction in homes
  • three-dog households

Features

  • Whole-house 20x21x5 air filters for furnace, AC, or heat pump
  • MERV 11 performance with 95% dust capture using synthetic media
  • Electrostatically charged media with 8 pleats per foot for longer life
  • Durable beverage board frame with dual wire backing for temperature resistance
  • Compatible with Lennox X8790 housing PCO14-23 models

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